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This is Scientific Americans 60-second Science. I'm Karen Hopkins.

It's great to have friends, especially if you're an Indo-Pacific bottlenose dolphin,

because new research shows that the males who were the most popular with the lads are also the most successful

with the ladies. Researchers describe how these affable marine mammals maintain and leverage their

complex social connections in a pair of papers in the journal Current Biology. Male dolphins form

lifelong cooperative relationships. Stephanie King of the University of Bristol.

She's been studying the dolphin population that inhabits Shark Bay,

a UNESCO World Heritage Site off the coast of Western Australia.

By studying populations like the Shark Bay Dolphins for many years,

we start to see the complex ways that they maintain their important social relationships.

These connections are more than just casual acquaintanceships.

They're crucial for the dolphins to be able to fend off rivals and secure mates.

When navigating their social world, it is those males that are more adept at building strong friendships

that are ultimately more successful.

So what do these aquatic alliances look like?

In Dark Bay, every male dolphin is embedded in a social network consisting of 4 to 14 males.

Livia Gerber of the University of New South Wales, Sydney.

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